<html>
  <head>
    <title>CO2 Meter</title>
    <script type="module" src="main-page.js"></script>
    <style>
      iframe {
        border: none;
      }
    </style>
  </head>
  <body>
    <div>
      <button type="button" id="grantPermissionButton">
        Grant CO2 meter permission
      </button>
    </div>
    <iframe src="co2-state-iframe.html"></iframe>
  </body>
</html>
